1401487 has 2 divisors, whose sum is σ = 1401488. Its totient is φ = 1401486.

The previous prime is 1401481. The next prime is 1401511. The reversal of 1401487 is 7841041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401487 - 2¹¹ = 1399439 is a prime.

It is a super-2 number, since 2×1401487² = 3928331622338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700743 + 700744.

It is an arithmetic number, because the mean of its divisors is an integer number (700744).

2^1401487 is an apocalyptic number.

1401487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401487 is an equidigital number, since it uses as much as digits as its factorization.

1401487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1401487 is about 1183.8441620416. The cubic root of 1401487 is about 111.9084871093.

The spelling of 1401487 in words is "one million, four hundred one thousand, four hundred eighty-seven".